I think he has to be in real life to put his new coping mechanisms into practive. I'm so glad that it went well. It makes everyone feel better. I would remain receptive and keep things just the way they are. Let some real time pass in real life circumstances to see how it goes.
There is no rush. Believe it or not, I think you've done the hard part. If he drinks or not, your household has become safe and stable because of you. YOU did that work.
He has a place to stay. Take your time.